Senior Security Engineer, Detection and Response (Cybersecurity)

Location: London, UK; hybrid office presence required Tuesday, Wednesday, and Thursday, with optional presence on Monday and Friday. The role includes semi-regular travel to the USA headquarters.

Company

Roblox builds a platform and tools for creating and sharing 3D immersive digital experiences.

What you will do

• Design, write, and maintain production-quality detections, SOAR playbooks, integrations, enrichment pipelines, and detections-as-code.
• Develop security tooling, case-management integrations, and automation supporting reliable follow-the-sun handoffs.
• Serve as the primary incident commander for the European time zone and lead serious incidents from identification through resolution.
• Architect the detection and response engineering function, prioritizing automation, orchestration, and risk-based monitoring.
• Conduct forensic investigations and threat hunts across enterprise and production environments.
• Collaborate with Security, Engineering, Legal, HR, executives, external partners, developers, and customers during major vulnerabilities and platform-wide events.

Requirements

• 10+ years of experience across security engineering, information security, IT, infrastructure/SRE, and/or incident response.
• 7+ years specializing in detection or response, including building detections, automation, or security tooling.
• Production-quality scripting and experience building automations, integrations, and data pipelines.
• Extensive incident commander experience, including independent decision-making and executive communication.
• Expertise in threat investigations, SIEM, EDR, IDS/IPS, NDR, SOAR, and incident response frameworks including NIST, Cyber Kill Chain, and MITRE ATT&CK.
• Bachelor's degree in Computer Science, Cybersecurity, or a related technical field, or equivalent experience; advanced degree preferred.

Nice to have

• Experience with public cloud, operating systems, virtualization, containerization, networking, build and development infrastructure, and hardware.
• Experience working independently in satellite offices or distributed teams.

Culture & Benefits

• Highly autonomous role with responsibility for regional security operations and critical decisions.
• Dedicated private workspace within a shared office environment.
• Collaboration with security and engineering colleagues at the US West Coast headquarters.
• Regular travel to the USA for alignment with central engineering and security leadership.
• Equal employment opportunities and reasonable accommodations during the recruiting process.